EDISON LABORATORY Edison National Historic Site West Orange, New Jersey Volume 1

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Lancaster was English experimenter who worked on shellac, phenol, and other chemicals used make records. L.131 Edison’s absence was put charge the chemical building.”134 Rosenstein worked the laboratory from 1910 1911. Rosenstein.130 130 William Meadowcroft TAE, August 18, 1911 (in 1911, WOL--Meadowcroft’s Reports).Ignatius Goldstein. Both Goldstein and Rosenstein worked room Building before space was made for them the chemistry laboratory around 1910.[who] shows much knowledge in inorganic and organic chemistry also analytical researches.133 Goldstein described him quiet and steady workman. was then transferred back the West Orange laboratory, which left May 1919 pursue his own interests. 131 Experiments and analysis orders found 1914, Battery, Storage. Lancaster.. 134 Goldstein Miller, October 20, 1911 (in 1911, WOL-Employees). devised several methods produce the thin nickel flake that was the heart the new battery. 135 Historian’s Note 90. Rosenstein acted Goldstein’s assistant testing and chemical analysis. His duties ranged from basic analysis the electrolyte taken from batteries to mixing developers used the photography department.132 He left 1913. worked the chemistry laboratory from 1907 1915 and then the Silver Lake plant from 1915 until November 1918. made the solutions that were used electroplating baths and the solutions that cleaned them. Christensen was Dane who experimented with various chemical mixtures used records and also was charge the production oflithium for the storage battery. Goldstein came West Orange 1909 from Warsaw, Poland, Edison’s chief analytical chemist charge testing. was also heavily involved experiments involving electroplating nickel and producing various chemical solutions used the electroplating process.136 47 . 132 TAE Goldstein, August 1911 (in 1911, Battery, Storage-General, 2). H. was employed in the laboratory from 1910 1912.135 Peter Christian Christensen.. 1M Edison Pioneers Records, Box 21. 133 Historian’s Note 90